Last week I ran across a link to Bulgarian military surplus wool blankets on Keepshooting.com for the low price of $14.95 each, plus S&H. Wanting to add a couple more wool blankets to my stash, I ordered two. They arrived Saturday while I was out on my last camping trip.
Keepshooting.com packed them well in a big box. Upon opening the box I was met with a very strong mothball smell, which intensified when I pulled one out to look at it. Aside from the odor both appeared to be brand new. The description on their web page is accurate.
Tonight I washed one of the two that I got. I used cold water and Dreft in the washing machine, set it to delicate, and extended & second rinse. I then dried it in the dryer for 70 minutes on delicate with a dryer sheet. It came out fine and there is just the barest hint of a mothball smell remaining. I laid it out flat on the floor and measured it -- no noticeable shrinkage. It seems a little fluffier. I'll probably wash the other one tomorrow.
You can of course use Woolite instead of Dreft (which is what I had on hand). I've also read of guys using shampoo. Wool is hair, after all.
I'm seriously considering using one as the raw material for a bushcraft hoodie. One of these would be perfect for keeping in your car for emergencies, or for camping.
For ~$40 for two of them shipped, this was a great deal.